- ✅ Init repo (uv + marimo)
- ex_marimo_intro: basic UI and reactive cell
- ex_cli_basics: Typer demo
- ex_data_validation: csv/json schema check
projects/purview_helpers: outline helpers & sample notebook- Add lightweight tests
- Add Ruff/Mypy configuration refinements
- Optional: pre-commit hooks
The plan remains flexible to accommodate LSP / certification milestones.